If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

Reply to Thread

Your Message

Please correctly re-type the phrase f o o t d o c t o r in the form box. Re-type it without the extra spaces and put the one space where it should be. We apologize for having to do this but this silliness helps slow the spammers.

Title:

Additional Options

Additional Options:

Automatically parse links in text

Topic Review (Newest First)

08-13-2009, 11:49 AM

7er

Whats the exact fluid that should go in-which ATF?

I have put in there "*****ton"- is that good for the system?

05-04-2009, 12:22 PM

Ray7er6ers5er3er

So you're not confused, the ATF goes in the gold/

silver canister with the nurled nut on top, towards the front drivers side in the engine compartment. If you put brake fluid in there it's got to come out, be flushed and refilled. To test fluid level, pump the brakes (engine off) about 15-20 times, until the pedal gets real hard...THEN fill to 1/2" below rim.

The brake fluid resivoir is near the fire wall, similar to any cars, simply fill to level indicated with PS fluid.

The PS canister should have been better marked in my opinion, with a warning label.

04-14-2009, 05:01 PM

MikeinLV

Re: The brakes are hydraulically boosted by the same

Hi Roy,

Thank you very much for this information. My son will be happy, cause I won't let him drive my '66 GTO, this way he can have his car.

Mike

04-14-2009, 04:51 PM

ROYinGA

The brakes are hydraulically boosted by the same

system that boosts the steering. There is a metal reservoir can for the ATF. The brake master cylinder is like other cars with a plastic reservoir on top of it for the normal DOT 3 or 4 brake fluid. The booster cylinder is between the master cylinder and the firewall. Do a search for "brake bomb" and it will tell you how to properly check the fluid level for the ATF reservoir.

04-14-2009, 09:33 AM

MikeinLV

Re: DO NOT use other PS fluids only the ATF.

Thanks for the replies!

I presume there are 2 different tanks for these fluids?

The reason I'm asking is my son told me that the PS pump runs both the brakes and the PS, I thought he was crazy but he said that's what the previous owner told him.

Thanks again!

Mike

04-13-2009, 10:10 PM

ROYinGA

DO NOT use other PS fluids only the ATF.

04-13-2009, 08:52 PM

Byron

They are different fluids

It is critical that these two fluids are not confused. ATF can be used for PS. Brake fluid must be used for the brake system. no substitution

04-13-2009, 02:18 PM

MikeinLV

85 735i PS/Brakes

Hello all,

My son just purchased an 85 735i, not having a manual (yet) his PS pump is making an awful noise when turning the wheel and pressing on the brake pedal. I have been reading thru this forum and I'm confused. I was under the impression that the PS and brakes used the same fluid, then I read use ATF for PS and DOT4 for brakes. Could someone set me straight?